.social-icons { float: right; }
.social-icons span.label { 
    line-height: 30px;
    font-size: 13px;
    color: #8b8c8d;
    display: inline-block;
    padding: 0;
}
.social-icons a { 
    background: url(../images/social-icons-sprite.png) 0 0 no-repeat;
    width: 30px;
    height: 30px;
    background-color: #000;
    display: inline-block;
    text-indent: -9999px;
    border-radius: 3px;
    -webkit-border-radius: 3px;
    -moz-border-radius: 3px;
    margin-left: 10px;
    line-height: 30px;
}

.social-icons a:hover { 
    background: url(../images/social-icons-hover-sprite.png) 0 0 no-repeat;
    width: 30px;
    height: 30px;
    background-color: #E0E0E0;
    display: inline-block;
    text-indent: -9999px;
    border-radius: 3px;
    -webkit-border-radius: 3px;
    -moz-border-radius: 3px;
    margin-left: 10px;
    line-height: 30px;
}